Sunday

February 14, 2016
Total # Posts: 300

**physics**

1. A ball moving horizontally clears a net 2 meters high. What maximum speed can it have if it is to fall within 5 meters of the net? 2.A pulley system lifts a load of 800 Newtons, 20 centimeters while the rope pulling it moves 100 cm. a. How much force must be applied to lift...
*October 18, 2011*

**physics**

A small steel ball rolls off a table (1 meter high) with a speed of 2 m/s. Where should they place a can (15 cm high; diameter 10 cm) to catch the ball?
*October 18, 2011*

**physics**

1. A jet is flying with an air speed of 500 m/s. A parcel is dropped out of the plane. Assume that it takes 40 seconds for the parcel to hit the ground.. Assume no air resistance. a. How high is the jet? b. How far forward horizontally from the spot where it leaves the jet, ...
*October 18, 2011*

**physics**

1. A jet is flying with an air speed of 500 m/s. A parcel is dropped out of the plane. Assume that it takes 40 seconds for the parcel to hit the ground.. Assume no air resistance. a. How high is the jet? b. How far forward horizontally from the spot where it leaves the jet, ...
*October 18, 2011*

**chem**

How many moles of chloroethylene contain 5.47X10^26 molecules
*October 1, 2011*

**math**

A man agrees to pay $450 per month for 48 months to pay off a car loan. If interest of is charged at 12% compounded monthly, how much did the car originally cost?
*September 12, 2011*

**Reading **

For this question,i think her mother's words inspire her daughter.That's my explaination£¬hope it will help u.
*June 16, 2011*

**Chemistry**

The molar heat capacity of silver is 25.35 . How much energy would it take to raise the temperature of 9.50 of silver by 10.5?
*June 7, 2011*

**calculus**

Use the demoivre's theorem to find the answer? (1+i)^8
*May 20, 2011*

**calculus**

write it in the form of a+ib (1+i)^2 (1-i)^3
*May 18, 2011*

**physics**

Consider the system shown in the figure below with m1 = 30.0 kg, m2 = 13.7 kg, R = 0.110 m, and the mass of the pulley M = 5.00 kg. Object m2 is resting on the floor, and object m1 is 4.60 m above the floor when it is released from rest. The pulley axis is frictionless. The ...
*May 14, 2011*

**Math**

Find the product. (5a+2)³
*May 3, 2011*

**Math**

Mutliply. (9t² - t- 7)(4t²+9t-1) AND Find the product. (5a+2)³
*May 3, 2011*

**Math**

Find the product. (5a+2)³
*May 3, 2011*

**Math**

Multiply. (9t²t-7)(4t²+9t-1)
*May 3, 2011*

**physics - i need A.S.A.P**

An object of mass 1.5 kg is placed on a rough horizontal surface, as shown in Figure 1. Force F acts on the object. When the magnitude of F is 10 N, the object just begins to slide. Determine the coefficient of static friction between the object and the surface. i do not know ...
*May 2, 2011*

**math**

240 feet of fencing material is going to be used. What should the dimensions be to produce a maximum enclosed area.
*April 28, 2011*

**Math**

12 congruent individual plots 8ydx7=56yd 18ydx3=54yd 56yd+54yd=110yd Total length: 110yd -------------------------------- 6 congruent congruent rectangles 4ydx2=8yd 3ydx2=6yd 8ydx4=32yd 6ydx3=18yd 18ydx3=54yd 32yd+54yd=86yd Total length: 86yd
*April 20, 2011*

**physics**

what is cross product or vector product plz explain it in detail.....
*April 18, 2011*

**information systems**

how can we say that a data should be relevant and verifiable?
*April 17, 2011*

**fizik**

b) A ball of mass 3.5 kg starts from rest and slides down a rough inclined plane 60 cm long in 0.6 s. i) Calculate the net force acting on the object along the inclined plane
*April 11, 2011*

**algebra**

Shelly has $175 to shop for jeans and sweaters, Each pair of jeans costs $25, each sweater costs $20, and she buys 8 items. Determine the number of pairs of jeans and sweaters Shelly bought.
*March 30, 2011*

**Math**

Thank you.
*March 21, 2011*

**Math**

Do I add them together, have the answer and then divide by 7 ?
*March 21, 2011*

**Math**

A student earned scores of 85, 83, 90, 94, 88 and 84 on the first six tests in a biology class. What score is needed on the seventh test to produce an 86 average?
*March 21, 2011*

**Math**

Paul gets a bill from the sign rental company for $73.03. Their original quote was $9.84 per day for the sign, plus $13.99 for delivery/pick up. For how many days rental was Paul billed?
*March 21, 2011*

**algebra**

Solve using the quadratic formula and leave the answer in radical form: y^2+6y-1=0
*March 10, 2011*

**algebra**

Given a quadratic equation in the form y = ax2 +bx +c , and four choices of graphs representing that equation, how can you tell which choices could be eliminated right away by looking at the equation and looking at the graphs and doing some minimal calculations and not ...
*March 4, 2011*

**algebra**

simplify: ã(x^2+2x+1)
*March 2, 2011*

**algebra**

solve for x: X+4 = ∜(x+1)
*March 2, 2011*

**algebra**

simplify: ã(x^2+2x+1)
*March 2, 2011*

**helth**

i am in the 5th grade and need to know the function of heart and how to draw it
*February 26, 2011*

**trig/precalc**

a plane flies 810 miles form Franklin to Centerville with a bearing of 75 degrees (clockwise from north). then it flies 648 miles from centerville to rosemont with a bearing of 32 degrees. find the straight-line distance and bearing from rosemont to franklin.
*January 20, 2011*

**geometry **

Find JL if JK=17-x, KL=2x-7, and K is the midpoint of JL
*January 20, 2011*

**english**

complete the story on the basis of the beginning given below in at least 300 words. Anshuman felt a severe pain in the left part of his chest. He was seating on the terrace right then, and being overweight he struggled to reach his room to make a call to his brother...
*January 16, 2011*

**microeconomics**

Assume you read in a newspaper that firms who produce baby milk are not doing well due to melamine case. With the theory of perfect competition in mind, what do you expect to happen to the baby milk prices? Will the firms able to make profits in long run?
*January 6, 2011*

**microeconomics**

“Competitive firms do not want to produce its goods even after an increasing marginal product has set in and the marginal cost is decreasing”. Do you agree?
*January 6, 2011*

**math**

40=40 and 16=10 and6
*December 9, 2010*

**science**

thanks!
*December 3, 2010*

**science**

is the sun dynamic in changing, unchanging, inactive, or perfectly homogeneous? I am so confused!!!! I need it for my poster!
*December 3, 2010*

**Phy. Science**

What is the state of matter when non-convective rain leaves the cloud?
*December 1, 2010*

**ethics**

how do most us manufacturers monitor their factories for compliance with corporate code of conduct
*November 30, 2010*

**math**

solve 2│2x-7│+11=25
*November 22, 2010*

**physics**

An amount of work equal to 3.5 J is required to compress the spring in a marble gun. If all energy is conserved, how much kinetic energy does a 25 gram marble have when it leaves the spring?
*November 14, 2010*

**french**

kindly make 7 sentences with the verb ".HABITER". THANKS.....IAM A 4TH GRADE STUDENT.
*October 15, 2010*

**math**

22+22+23+25+25+26+26+26+39 divided by9=234/9==26....ans =26
*October 15, 2010*

**3rd grade math**

46-12=34
*October 14, 2010*

**math/2nd grade**

out of 40 crayons in two boxes,one box has 8 more crayons than the other.
*October 13, 2010*

**managerial finance**

12.5%
*October 10, 2010*

**physics**

okay i got it thank you so much i had my signs all wrong thank you again!
*October 6, 2010*

**physics**

it's still wrong :( i've tried my way and your way and it's still wrong
*October 6, 2010*

**physics**

well since there's an x component of the gravity wouldn't that affect the force of friction? For my force i got (0 = theta) mgsin0 - (mu)mgcos0 is that wrong?
*October 6, 2010*

**physics**

Well so to convert k constant to N/m would it be 22 N/m instead of 2.2 N/cm?
*October 6, 2010*

**physics**

A spring with a spring-constant 2.2 N/cm is compressed 28 cm and released. The 4 kg mass skids down the frictional incline of heigh 43 cm and inclined at a 22 degrees angle (g = 9.8 m/s^2) The path is frictionless except for a distance of 0.9 m along the incline which has a ...
*October 6, 2010*

**4th grade**

two eqtns....X+12=Y;AND X+Y=40......fromX+12=y thenX+X+12=40;2X+12=40 THEREFORE X=14....IF X=14 AND X+Y=40,THEN Y=26ANS...26DOLLARS FOR SWEATER.
*September 27, 2010*

**algebra**

the function H described by H (x) -2.75x+71.48 can be used to predict the height in centimeters of a women whose humerus is z cm long predict the height of the womens humerus is 32 cm long
*September 7, 2010*

**physics**

A dart gun is fired while being held horizontally at a height of 1.38m above ground level, and at rest relative to the ground. The dart from the fun travels a horizontal distance of 7.76. A child holds the same gun in a horizontal position while sliding down a 28.8 degrees ...
*September 4, 2010*

**trig**

Given that tan 45=1, use tan(x+y) to show that tan 22.5= /2 - 1. (/is square root sign
*August 24, 2010*

**world history**

the Khmer Rouge is a communist force associated with the country of
*August 16, 2010*

**microeconomics**

Suppose that in 2008, you became president of a small nonprofit theater company. Your playhouse has 120 seats and a small stage. The actors have national reputations, and demand for tickets is enormous relative to the number of seats available; every performance is sold out ...
*August 15, 2010*

**microeconomics**

For each of the following scenarios, decide whether you agree or disagree and explain your answer. a. If the elasticity of demand for cocaine is −.2 and the Drug Enforcement Administration succeeds in reducing supply substantially, causing the street price of the drug ...
*August 14, 2010*

**economics**

If the demand for a good has unitary elasticity, or elasticity is −1, it is always true that an increase in its price will lead to more revenues for sellers taken as a whole.
*August 14, 2010*

**Computer**

An employee at xyz Recruiters would like to query the Recruiter table. She has created a query and entered the fields she wants to display in the result in the design grid. Now, she enters the criteria. 3. What would the employee enter in the Criteria row of the Start Date ...
*July 7, 2010*

**Computer**

Acess An employee at xyz Recruiters would like to add some additional fields to the Client table. He needs to add fields that will store the Web page for a client as well as whether or not the client participates in a preferred client program. 1. What data type should the ...
*July 7, 2010*

**physical science (light)**

number 25 is 8 I just took the exam and im sure about it
*June 10, 2010*

**stoichiometry problem**

how many grams of oxygen gas are needed to react with 5.7 moles of phosphorus
*June 7, 2010*

**Math urgent**

If two "fair" dice are tossed what is the probability that the sum of their faces will be a multiple of 3? Show or explain how you got your answer?
*June 3, 2010*

**geometry**

Circle O has a radius of 8 m and the measure of central angle AOB is 45 degrees. Which of the following could be used to calculate the length of arc AB?
*June 1, 2010*

**Health Anatomy**

Fallopian Tubes: (the ampulla) is the site of fertilization. Endometrium: is the innermost membrane of the uterus which gets shed during a woman's monthly menstrual cycle. Sterility in males: may vary depending on the cause, but it's the inability of a spermatozoa to ...
*May 27, 2010*

**MATH**

WHEN MR. LOWE RETURN FROM HIS FISHING TRIP, HIS STUDENTS INQUIRED AS TO THE LENGTH OF HIS PRIZE CATCH. MR. LOWE ANSWERED. "THE HEAD MEASURED 9 INCHES." "THE TAIL WAS AS LONG AS THE HEAD AND HALF THE BODY." THE BODY WAS AS LONG AS THE HEAD AND TAIL." ...
*May 19, 2010*

**college physics part 2**

the question ask how old is the sample in yr. so that mean t/th is 3 yrs.
*April 18, 2010*

**college physics part 2**

the activity of a sample of carbon has one-eighth of the initial activity. carbon-14 has a half-life of 5730 yr. how old is the sample in yr?
*April 18, 2010*

**algebra**

start using FOIL Method, you will get 2y^2-y-15. i don't know if i answer your question or not..
*April 18, 2010*

**math**

the ratio of strings to woodwind instruments in a baroque orchestra is 5:3. if there are 24 instruments in total, how many stringed instruments are there in the orchestra?
*April 7, 2010*

**math**

the ratio of strings to woodwind instruments in a baroque orchestra is 5:3. if there are 24 instruments in total, how many stringed instruments are there in the orchestra?
*April 7, 2010*

**math**

40lbs=120mins;...8lbs=120mins/5=24mins....it takes 24mins to cook 8lbs of turkey.
*April 6, 2010*

**MATH**

PLEASE COULD SAME ONE HELP ME. THREE 2 INCH DIAMETER TENNIS BALLS SNUGLY FIT IN A CYLINDRICAL CAN. THE BALLS TOUCH THE SIDE, TOP AND BOTTON OF THE PLASTIC CAN. HOW MUCH AIR IS IN THE CAN? ROUND DECIMAL ANSWERS TO THE NEAREST TENTH OF A CUBIC INCH. SHOW AND EXPLAIN HOW YOU GOT ...
*March 5, 2010*

**MATH**

THREE 2 INCH DIAMETER TENNIS BALLS SNUGLY FIT IN A CYLINDRICAL CAN. THE BALLS TOUCH THE SIDE, TOP AND BOTTON OF THE PLASTIC CAN. HOW MUCH AIR IS IN THE CAN? ROUND DECIMAL ANSWERS TO THE NEAREST TENTH OF A CUBIC INCH. SHOW OR EXPLAIN HOW YOU GOT YOUR ANSWER.
*March 4, 2010*

**math**

AL`S CLOTHING STOREBOUGHT HANDKERCHIEFS 6 FOR $10 AND SOLD THEM 4 FOR$10. THEY MAKE $60 PROFIT. HOW MANY HANDKERCHIEFS DID THEY SELL?
*February 26, 2010*

**math**

how can i wirte a story problem and show my solution in the same time
*February 19, 2010*

**math**

How do you find the other 3 angles in a parallelogram when you only havethe measurement of 1 angle? (without using a protractor)
*February 18, 2010*

**State and Local Government**

Do you think as a legislature, would you be a delegate or trustee? Explain. Do you think non-partisan commissions should handle reapportionment? Why do you believe that competition in legislature elections is declining? Serious reponses please. Thanks in advance.
*January 27, 2010*

**physics**

Correct the following statement: The racing car rounds the turn at a constant velocity of 145 km/hr.
*January 24, 2010*

**Math**

A US nickel contains 3 ounces of copper for every ounce of nickel. How much nickel is required for 14 pounds of copper.
*January 12, 2010*

**algebra**

is this a nonlinear equation? 2x / 4x
*October 14, 2009*

**history**

who explored the swamp area in the coastal plain in virginia
*October 6, 2009*

**history**

what is the name of the pennsula east of virginia
*October 6, 2009*

**PRE-ALGEBRA**

420 mL
*October 6, 2009*

**math**

If a single letter is drawn from the set {m,a,t,h,e,i,c,s} what is the probability that the letter drawn is a member of the set {m,a,t,h}
*September 30, 2009*

**eassy writing**

A healthy diet and regular exercise not only improves health,but lowers health care costs.
*September 29, 2009*

**analogy**

mean:meant::kneal:k
*September 24, 2009*

**US History**

I was looking up the definition for pilgrim and all I found were things saying: a pilgramage for religious reasons. I want the correct definition for a 1600 pilgrim. Would "those who settled in Plymouth, New England" be correct?
*September 3, 2009*

**looking at things different**

3 s to a t
*August 17, 2009*

**Western Civilization**

There are Treatise of the three imposters and Thomas Paine's On the Religion of Deism, and compare and contrast them for their different expressions of Enlightment through on tha nature of God, reason, faith an religion. This is essay questions to discuss about. Help me!
*April 26, 2009*

**Western Civi**

ummm OK. Thank you for helping me.
*April 5, 2009*

**Western Civi**

This question is related to Enlightenment. Question; What connection did representatives approach to social problem have with Schientific Pevolution? I want you to answer in sentences if you can! Thank you!!!!
*April 5, 2009*

**Western Civi**

What were the chief concerns of enlightment most prominent representatives, and what connection did their approach to social problems have with the scientific Revolution?
*April 5, 2009*

**Anthropology**

How do we distinguish between sex differences and gender differences? Is it possible to always isolate biological influences from those that are cultural?! Answer this question as possible as you can! I would appriciate your help so so so much:)))
*April 3, 2009*